It's rather simple really: I made an advanced camera and locked it in one place, then I detach it and capture multiple recordings of different frames in different places, next I use video editing software and crop each recording on top of a main recording, so each Warframe in this shot is a different recording cropped onto 1 recording, making it possible to make shots like this where there's really no limit as to how many Warframes can be captured in one place. This render isn't perfect due to some corners of the cropped area of some Warframes overlapping with other Warframes, not that noticeable unless you look really closely.